bio 1 lab final

Which of the following organisms cannot perform photosynthesis?

fungus

The Calvin Cycle is also known as

the dark reactions

photosynthesis equation

6CO2+6H2O+light energy yields C6H12O6+6O2

effect of humidity on photosynthesis

as humidity is increased, there is more water available and so photosynthetic rate will rise

Prokaryotic cell division is known as

binary fission

Which of the following would happen if you planted more trees and shrubs?

decrease in CO2

G1, S and G2 make up this portion of the cell cycle:

interphase

MPF levels in the cell are highest during this phase:

interphase

Chromosomes become visible during this phase:

prophase

relationship between photosynthesis and cellular respiration?

the equations are inverse. photosynthesis's products are the reactants of cellular respiration and vice versa.

what links first and second reactions of photosynthesis?

the products of the first reaction are used in the second reaction.

Where are the photosystems located?

thylakoid membranes

This portion of the light spectrum supplies the energy for photosynthesis.

visible

What molecule does the oxygen released in photosynthesis originate from?

water

Eukaryotic cells spend the majority of their cell cycle in this phase:

G1 phase

what is a carotenoid?

a carotenoid is an accessory pigment which absorbs green/blue, reflects yellow/orange/red

what is a pigment? major photosynthetic pigment?

a pigment absorbs wavelengths of light and reflects other wavelengths of light. the main photosynthetic pigment is chlorophyll.

what is an action spectrum and an absorption spectrum?

an action spectrum graphs the effectiveness of different wavelengths in driving photosynthesis. an absorption spectrum graphs the light absorption versus wavelength.

effect of CO2 availability on photosynthesis

an increase in CO2 usually will lead to an increase in the photosynthetic rate

effect of light on photosynthesis

an increase in light will increase the rate of photosynthesis. inversely, a decrease in light will lead to a decrease in photosynthetic rate.

Sister chromatids are separated and chromosomes are pulled to opposite poles of the cell during this phase:

anaphase

Out of the following list, what color of light is absorbed MOST by a plant?

blue

Sections of DNA that code for traits in an organism are called:

genes

What are the two products produced during photosynthesis?

glucose and oxygen

Which of the following colors would be least effective in driving photosynthesis in a plant with chlorophyll a molecules?

green

products of 2 photosynthesis reactions

light dependent reactions produce ATP and NADPH. Light independent reactions produce glucose.

2 main photosynthesis reactions? where do they take place?

light dependent reactions take place in thylakoid membranes. light independent reactions take place in the stroma

Chromosomes line up along the equator of the cell during this phase:

metaphase

Spindle fibers are composed of:

microtubules

effect of rainfall on photosynthesis

more rain means more water. this will increase the photosynthetic rate. however, if too much water the roots get clogged and the photosynthetic rate will drop.

Microtubules extend and begin to form the mitotic spindle during this phase:

prophase

These pores allow the exchange of gases between the plant and the atmosphere.

stomata

difference between the stroma and stoma?

stroma is the inner matrix of chloroplasts. stoma is the opening in leaves where gas can enter or leave.